Available in multiple sizes to fit a variety of panel
thicknesses and diameters, the plugs are used to close unneeded panel holes and
are manufactured in a variety of materials, including 6/6 nylon and
polycarbonate. They are simple and easy to install with fingertip pressure,
lock into panels securely, come in matte or gloss finishes, and are offered in
dome, vented, louvered, and specialty window plug designs.

Heyco also offers an assortment of their most popular plugs
as LabKit #3, perfect for product design departments, experimental labs, and
all prototype work.